Stevia (Stevia rebaudiana B.) yield in the case of different production technologies

Annamária Kiss,Mária Takácsné Hájos

doi:10.34101/actaagrar/72/1591

Abstract

Stevia rebaudiana B. offers a natural alternative of sweetening, potential health promotion plant, and our country shows increased interest about cultivation in Hungary in addition to the neighboring European countries. The agricultural production system installation necessaryunderstanding of the needs of the plant, as well as exploring the agronomic potential. Field experiments were conducted in 2015 with the aim to highlight some of the technological production parameters and correlations between them. We have reviewed the most important agronomic factors, the spacing (50×50 cm and 33×33 cm), ground covering (agro-cloth covered and uncovered/ control), their vegetative growth (first-,second-order branch), herb yield and quality in effect.Based on empirical evidence, that the Hungarian climates also have the opportunity of 3 cuttings during a growing season, besides of early planting, optimal climatic conditions (in October didn’t reduce the daily minimum temperature below 0 °C, after cuttings the maximum interval values remain below 40 °C), and adequate water supply and crop protection facility. The 33×33 cm spacing evaporates more than 50×50 cm spacing, because of the dense population, the continuous canopy less able to breathe, so there are serious chances to the pathogen colonization.Based on the results of our research to the wider 50×50 cm spacing favorable appreciate the stevia optimal progress in terms of qualitative and quantitative parameters of the yield. The stevia yields produced in the Northern Great Plains field cultivation can produce similar results as stevia crop yields in warmer climates, where the primary crops. Our research experience suggest that there is a viable domestic stevia cultivation, developing the necessary technology is still growing further investigation justifies.

Highlights

Stevia rebaudiana B. offers a natural alternative of sweetening, potential health promotion plant, and our country shows increased interest about cultivation in Hungary in addition to the neighboring European countries
That the Hungarian climates have the opportunity of 3 cuttings during a growing season, besides of early planting, optimal climatic conditions, and adequate water supply and crop protection facility
The 33×33 cm spacing evaporates more than 50×50 cm spacing, because of the dense population, the continuous canopy less able to breathe, so there are serious chances to the pathogen colonization

Summary

Introduction

Stevia rebaudiana B. offers a natural alternative of sweetening, potential health promotion plant, and our country shows increased interest about cultivation in Hungary in addition to the neighboring European countries. Az elmúlt években már voltak kísérletek a sztívia hazai termesztésére vonatkozóan, de az engedélyt megadó rendelet óta még csak néhány év telt el, így még előttünk áll a feladat: a megfelelő termesztéstechnológia kidolgozása, a növény környezeti igényeinek feltérképezése, a különböző edafikus és klimatikus viszonyokhoz való alkalmazkodás megismerése, annak érdekében, hogy a sztívia rentábilis, nagyüzemi termesztésbe vonható legyen hazánkban. Széles körben vizsgálták milyen hatással van a nappalok és az éjszakák hosszúsága a sztívia fejlődésére, növekedési dinamikájára, illetve a szteviol képződésre, annak mennyiségére, valamint azt, hogy a hőmérséklet mekkora befolyással bír ezekre a mutatókra.

Results

Conclusion